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Another AC_TRY_LINK conversion to AC_LINK_IFELSE.

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Proper definition of HAVE_function if function is found deeper.
This commit is contained in:
Yang Tse 2008-08-01 19:29:05 +00:00
parent 357389a905
commit 47724ef238
1 changed files with 21 additions and 17 deletions
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30
ares/configure.ac
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@ -792,23 +792,27 @@ AC_CHECK_MEMBER(struct addrinfo.ai_flags,
) )
AC_CHECK_FUNCS( bitncmp \ AC_CHECK_FUNCS([bitncmp \
gettimeofday \ gettimeofday \
if_indextoname, if_indextoname
dnl if found ],[
[], ],[
dnl if not found, $ac_func is the name we check for
func="$ac_func" func="$ac_func"
AC_MSG_CHECKING([deeper for $func]) AC_MSG_CHECKING([deeper for $func])
AC_TRY_LINK( [], AC_LINK_IFELSE([
[ $func ();], AC_LANG_PROGRAM([[
AC_MSG_RESULT(yes!) ]],[[
$func ();
]])
],[
AC_MSG_RESULT([yes])
eval "ac_cv_func_$func=yes" eval "ac_cv_func_$func=yes"
def=`echo "HAVE_$func" | tr 'a-z' 'A-Z'` AC_DEFINE_UNQUOTED([AS_TR_CPP([HAVE_$func])], [1],
AC_DEFINE_UNQUOTED($def, 1, [If you have $func]), [Define to 1 if you have the $func function.])
AC_MSG_RESULT(but still no) ],[
) AC_MSG_RESULT([but still no])
) ])
])
dnl check for inet_pton dnl check for inet_pton